LWiAI Podcast #237 - Nemotron 3 Super, xAI reborn, Anthropic Lawsuit, Research!
Nemotron 3 Super: An Open Hybrid Mamba-Transformer MoE for Agentic Reasoning, Another XAI Cofounder Has Left, Anthropic Sues Department of Defense
Our 237th episode with a summary and discussion of last week’s big AI news!
Recorded on 03/13/2026
Hosted by Andrey Kurenkov and Jeremie Harris
Feel free to email us your questions and feedback at [email protected] and/or [email protected]
In this episode:
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Perplexity announced “Personal Computer,” a local Mac-based AI agent positioned as a safer alternative to OpenAI’s computer-use agents, while Anthropic added GitHub PR code review pricing reviews at $15–$25 and Cursor launched trigger-based “Automations” for always-on coding agents.
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ChatGPT introduced interactive math/science visuals and Anthropic added in-chat interactive charts/diagrams; Nvidia released open weights for its 120B-parameter Natron Free Super hybrid Transformer–Mamba latent-MoE model trained natively at 4-bit for Blackwell GPUs.
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Nvidia halted H200 production for China amid customs blocks and domestic chip pressure; xAI saw major co-founder departures; Anthropic previewed a Claude Marketplace for enterprise procurement; Yann LeCun’s aMI raised $1.3B; humanoid robot maker Sanctuary reached a $1.15B valuation.
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Anthropic sued the Pentagon over a “supply chain risk” designation as memos ordered removal within 180 days; research covered models resisting activation steering, limits of chain-of-thought control, inference-scaling boosting cyber-task success, low-probability risky actions, weaknesses in SWE-bench, multimodal pretraining, long-context RNN memory caching, context-parallel training efficiency, RL for CUDA kernel optimization, and latent introspection detecting concept injection.
A thank you to our current sponsors:
- Box - visit Box.com/AI to learn more
- ODSC AI - go to odsc.ai/east and use promo code LWAI for an additional 15% off your pass to ODSC AI East 2026.
- Factor - head to factormeals.com/lwai50off and use code lwai50off to get 50 percent off and free breakfast for a year
Timestamps:
- (00:00:10) Intro / Banter
- (00:01:23) Response to listener comments
- Tools & Apps
- (00:02:06) Perplexity’s Personal Computer turns your spare Mac into an AI agent | The Verge
- (00:04:22) Anthropic launches code review tool to check flood of AI-generated code | TechCrunch
- (00:08:08 ) Cursor is rolling out a new kind of agentic coding tool | TechCrunch
- (00:11:14) ChatGPT can now create interactive visuals to help you understand math and science concepts | TechCrunch
- (00:11:56) Anthropic’s Claude AI can respond with charts, diagrams, and other visuals now | The Verge
- Projects & Open Source
- (00:13:54) Introducing Nemotron 3 Super: An Open Hybrid Mamba-Transformer MoE for Agentic Reasoning | NVIDIA Technical Blog
- Applications & Business
- (00:21:22) Nvidia halts H200 production as China backs Huawei AI chips
- (00:28:33) Another XAI Cofounder Has Left, and Another Says He’s Leaving. - Business Insider
- (00:34:04) Anthropic’s Claude Marketplace allows customers to buy third-party cloud services | TechRadar
- (00:37:57) Yann LeCun’s AMI Labs raises $1.03 billion to build world models | TechCrunch
- (00:44:52) Humanoid robotics maker Sunday reaches $1.15B valuation to build household robots | TechCrunch
- Policy & Safety
- (00:46:09) Anthropic Sues Department of Defense Over ‘Supply Chain Risk’ Label - The New York Times + Google and OpenAI Just Filed a Legal Brief in Support of Anthropic
- (00:53:24) Internal Pentagon memo orders military commanders to remove Anthropic AI technology from key systems - CBS News
- (00:58:15) Endogenous Resistance to Activation Steering in Language Models
- (01:06:27) Reasoning Models Struggle to Control their Chains of Thought
- (01:09:52) ‘It means missile defence on datacentres’: drone strikes raise doubts over Gulf as AI superpower
- (01:14:57) Evidence for inference scaling in AI cyber tasks: Increased evaluation budgets reveal higher success rates
- (01:18:24) Frontier Models Can Take Actions at Low Probabilities
- Research & Advancements
- (01:24:20) Research note: Many SWE-bench-Passing PRs Would Not Be Merged into Main
- (01:28:26) [2603.03276] Beyond Language Modeling: An Exploration of Multimodal Pretraining
- (01:40:09) Memory Caching: RNNs with Growing Memory
- (01:48:47) Untied Ulysses: Memory-Efficient Context Parallelism via Headwise Chunking
- (01:58:41) CUDA Agent: Large-Scale Agentic RL for High-Performance CUDA Kernel Generation
- (02:08:57) Latent Introspection: Models Can Detect Prior Concept Injections
- (02:16:45) Physics of RL: Toy scaling laws for the emergence of reward-seeking
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Judge sides with Anthropic to temporarily block the Pentagon’s ban
After Anthropic's weeks-long standoff with the Pentagon, the company won one milestone: A judge granted Anthropic a preliminary injunction in its lawsuit, which sought to reverse its government blacklisting while the judicial process plays out. "The Department of War's records show that it designated Anthropic as a supply chain risk because of its 'hostile manner […]
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